FR3109640A1 - CONNECTED MONITORING WATCH, MARKING SYSTEM AND PROCESS FOR MONITORING A CORRESPONDING USER. - Google Patents

Abstract

CONNECTED MONITORING WATCH, BEACON SYSTEM AND METHOD FOR MONITORING A CORRESPONDING USER. The invention relates to a connected watch (1), capable of coming into contact with a wrist of a user, comprising a main body (2) provided with a display screen (20), a bracelet (4) connected to the main body (2), a measurement module (3) intended to be positioned opposite a radial artery of the user's wrist, when the watch is worn by the user, a (5), and a location module (6), said location module (6) comprising: a geolocation sensor (61); an avalanche victim detector (62), and communication means (63) capable of to communicate with a beacon (9). Figure for abstract: Figure 1

Description

CONNECTED MONITORING WATCH, BEACON SYSTEM AND METHOD FOR MONITORING A CORRESPONDING USER.

The present invention relates to the field of connected watches.

More particularly, the invention relates to a connected watch making it possible to monitor a user when the latter moves in a potentially perilous environment, for example a hiker, a climber, a skier, a person climbing in natural environment whether professionally or not. The invention also relates to the field of identification in such perilous environments.

Prior art

Relatively perilous environments such as the mountains (in summer or winter), the forest, hiking trails or on natural climbing tracks are known to present a significant risk, in particular because of the often difficult conditions to access them by rescue teams.

Indeed, and even if we know where a person must be picked up, which is not always obvious due to the lack of network in a given place and therefore the difficulty of having a precise location, the teams of Intervention are often hampered by the conditions of evolution (terrain, weather conditions, …) which mean that each minute saved can prove to be important.

Moreover, a person wishing to venture into such environments may still be likely to have a health problem, which can quickly become dangerous if they are too isolated.

So as to be able to anticipate these possible problems, there is therefore a need to implement a surveillance and prevention device in a dangerous environment which is safe, reliable, and which is also sufficiently resistant to withstand, for example, falls. or avalanches.

Such a solution can be offered by a connected watch. Nowadays, the use of connected watches is spreading. As a result, these watches have become increasingly functional. For example, connected bracelets are known for communicating by audio or video, or for sending messages. There are also known connected bracelets used as monitoring devices, and comprising one or more sensors making it possible to measure, for example, a person's pulse, his calorie expenditure during physical exercise, or external data such as temperature, ambient humidity, or location using satellite data.

The advantage of such connected watches is that they are attached to a wrist and are relatively resistant, for example to falls or weather conditions.

However, such connected watches do not currently allow precise monitoring, because in the event of impossible access to a network, such a watch will not be precisely geolocated. In addition, such watches make it possible to take measurements so as to display them on a screen but do not process this data so as to alert the emergency services if necessary.

There is therefore a need to improve such connected watches, and in particular to adapt them to use in environments that may present a risk to the health of persons.

There is also a need to provide such a connected watch that is easy to use and inexpensive to implement, so that the greatest number of people can benefit from it.

The aim of the invention is in particular to overcome the drawbacks of the prior art.

The invention meets this need by proposing a connected watch, capable of coming into contact with a user's wrist, comprising a main body provided with a display screen, a bracelet connected to the main body, a measurement intended to be positioned opposite a radial artery of the user's wrist, when the watch is worn by the user, a processing module, and a localization module,

said measurement module comprising:

• a first sensor capable of measuring the oxygen level at said radial artery of said user;
• a second sensor able to measure the heart rate of said user by measuring the vibrations at the level of said radial artery;
• a third sensor capable of measuring the ascending and descending blood flows at the level of said radial artery;
• a fourth skin temperature sensor of said user,

said processing module comprising:

• means for acquiring measured data from said first sensor, second sensor, third sensor and fourth sensor;
• first means for analyzing the oxygen level measured by said first sensor, comparing said value of the oxygen level with a first predetermined threshold;
• second means for analyzing the number of vibrations measured by said second sensor, comparing said heart rate value with a second predetermined threshold;
• third means for analyzing the ascending and descending blood flows measured by said third sensor, comparing said value of the ascending blood flow with respect to a third predetermined threshold and of the descending blood flow with respect to a fourth predetermined threshold;
• fourth means for analyzing the skin temperature of said user measured by said fourth sensor, comparing said value of the skin temperature with a fifth predetermined threshold;
• means for delivering information indicating the detection or non-detection of an anomaly based on said analysis of said oxygen levels, heart rate and ascending and descending blood flow of said user, and of said skin temperature of said user,

said location module comprising:

• a geolocation sensor;
• an avalanche victim detector, and
• means of communication capable of communicating with a beacon.

Thus, the invention proposes a new and inventive approach making it possible to solve at least in part some of the drawbacks of the prior art.

In particular, because this connected watch can be worn continuously, it makes it possible to provide reliable continuous monitoring and, moreover, monitoring suitable for use in environments that may present a risk to the health of a user.

Moreover, since these measurements are taken at the level of the radial artery of the user, this connected watch makes it possible to obtain reliable data and to carry out analyzes on precise data.

In addition, due to the plurality of sensors implemented as well as the processing module, the data can also be cross-checked, which amplifies this reliability.

Such a connected watch is also easy to use and inexpensive to implement.

According to one characteristic of at least one embodiment of the invention, said communication means comprise means for receiving first information delivered by said beacon, when said beacon is close to said watch, and means for transmission of a second piece of information to said beacon when said beacon is close to said watch.

As a result, this makes it possible to communicate with the beacons and thus to obtain information as well as to communicate it to the beacon. Such an embodiment can for example be useful for an emergency service in the event of a need to find a person, or for use with a view to guiding a user.

According to one characteristic of at least one embodiment of the invention, said first information comprises at least one element from the group comprising:

• the time of communication with said beacon;
• the date of communication with said beacon;
• the location of said beacon;
• a number of people having received information by said beacon within a predetermined period of time.

According to one characteristic of at least one embodiment of the invention, said second information comprises at least one element from the group comprising:

• the time of communication with said beacon;
• the date of communication with said beacon;
• an identification number of said connected watch;
• information characteristic of said user.

According to one characteristic of at least one embodiment of the invention, the connected watch further comprises a sensor capable of measuring atmospheric pressure and an external oxygen level.

As a result, this makes it possible to couple the data collected with parameters of the evolution environment of the connected watch.

According to one characteristic of at least one embodiment of the invention, the connected watch further comprises alert means and, if information indicating the detection of an anomaly is delivered by said delivery means, said alert generate an alert message which is transmitted via transmission means to at least one predetermined contact.

The invention further relates to a beaconing system comprising a plurality of beacons geographically spaced apart by at least one distance, each of said beacons being able to communicate with a connected watch according to one of the aforementioned embodiments, when said connected watch is close to said beacon, so that said beacon can deliver first information to said connected watch and receive second information delivered by said connected watch.

Thus, this allows, for example if the user is located in an area in which there is no network, and therefore the geolocation sensor cannot be active, to obtain the position of the user. through tags. In addition, the beacon system allows the connected watch to communicate with the beacons and thus obtain information as well as communicate it to the beacon. Such an embodiment can for example be useful for an emergency service in the event of a need to find a person, or for use with a view to guiding a user.

The invention further relates to a method for monitoring a user, said method being capable of delivering information indicating the detection or non-detection of an anomaly, the method implementing a connected watch capable of coming into contact with a wrist of a user according to one of the aforementioned embodiments, and said method comprising the following steps, implemented by said connected watch, when said measurement module is positioned facing a radial artery said wrist of said user:

• measuring the oxygen level of said user, using said first sensor;
• measuring the heart rate of said user by measuring vibrations at said radial artery, using said second sensor;
• measuring ascending and descending blood flows at said radial artery, using said third sensor;
• measuring said skin temperature of said user, using said fourth sensor;
• analyzing said oxygen levels, heart rate and ascending and descending blood flow, and skin temperature of said user, so as to transmit instructions for issuing information indicating the detection or non-detection of an anomaly;
• delivery of said information indicating the detection or non-detection of an anomaly;

said analysis step comprising the following successive steps:

• comparison of the measured oxygen level with a first predetermined threshold;
• comparison of the measured heart rate with a second predetermined threshold;
• comparison of the value of the ascending blood flow with respect to a third predetermined threshold and of the value of the descending blood flow with respect to a fourth predetermined threshold, and
• comparison of value of the skin temperature with respect to a fifth predetermined threshold, and
• instruction to issue said information indicating the detection of an anomaly if the oxygen level, and/or the heart rate and/or the ascending and/or descending blood flows and/or the skin temperature of said user respectively exceed the first, second, third, fourth thresholds and/or fifth predetermined thresholds.

According to a characteristic of at least one embodiment of the method, if information indicating the detection of an anomaly is delivered by said delivery means, the method comprises the following successive steps:

- generation of an alert message by said alert means, and

- sending said generated alert message to said at least one predetermined contact, through said transmission means.

According to one characteristic of at least one embodiment of the method, it implements a beaconing system according to the aforementioned embodiment, and, when said connected watch is close to a beacon, the method comprises a step of reception of a first piece of information delivered by said beacon and a step of transmitting a second piece of information to said beacon.

The invention further relates to a computer program product downloadable from a communication network and/or stored on a medium readable by microprocessor and/or executable by a microprocessor, characterized in that it comprises program code instructions for the execution of a method for monitoring a user according to one of the aforementioned embodiments, when it is executed on a computer or a mobile terminal.

The invention further relates to a storage medium readable by a terminal and non-transitory, storing a computer program comprising a set of instructions executable by a computer or a processor for implementing the method according to one of the aforementioned achievement.

Presentation of figures

Other aims, characteristics and advantages of the invention will appear more clearly on reading the following description, given by way of a simple illustrative example, and not limiting, in relation to the figures, among which:

is a diagram illustrating a side view of a connected watch according to one embodiment;

is a diagram illustrating the various modules contained in the connected watch according to the embodiment of FIG. 1;

is a diagram illustrating a method of monitoring a user according to one embodiment of the invention, and

is a diagram illustrating in detail the analysis step of the method according to the embodiment of FIG. 3.

is a diagram illustrating a beaconing system according to one embodiment of the invention, with a watch connected according to the embodiment of FIG. 1.

Detailed Description of Embodiments of the Invention

The general principle of the invention is based on the implementation of a connected watch, capable of coming into contact with a wrist of a user, comprising a main body provided with a display screen, a bracelet connected to the main body, a measurement module intended to be positioned opposite a radial artery of the user's wrist, when the watch is worn by the user, a processing module, and a localization module (6), the watch being able to indicate the detection or non-detection of an anomaly according to several criteria which are measured at the level of this radial artery.

Such a watch makes it possible to carry out a coherent analysis of vital data thanks to a combination of sensors, and thus determine the state of a person. It also makes it possible to obtain a precise position of the user at a given moment whatever the conditions of evolution. This determination can for example make it possible to carry out live diagnoses by the emergency services, to locate a person in difficulty.

Such a connected watch can, for example, be used to monitor people who go hiking, in the mountains, skiing, or for anyone who has to evolve in conditions that may be at risk.

This type of connected watch is simple to design and use.

We now present, in relation to FIGS. 1 and 2, a first embodiment of the connected watch according to the invention.

As illustrated in these figures, the connected watch 1 according to this embodiment comprises a main body 2 provided with a display screen 20, a bracelet 4 connected to the main body 2, a measurement module 3, a processing module 5 , and a location module 6.

As described, this watch is capable of coming into contact with a wrist of a user, so that one of the portions, more particularly the portion of the watch where a measurement module 3 is housed, can be positioned in vis-à-vis a radial artery of the wrist of the user, when the watch is worn by this user.

Such a main body 2 is, in this embodiment, produced by injected plastic molding so as to provide a material that is waterproof and resistant to the various conditions in which the watch could be required to evolve, such as in areas of extreme temperatures or high altitude areas.

It would also be possible to provide a main body made of another material which makes it possible to provide the same conditions of resistance and tightness.

The strap 4 can also be made by molding injected plastic or silicone.

This bracelet may, for example, have a closure positioned on one side, so as to facilitate its putting on and taking off.

However, the bracelet could also be a clasp bracelet or a lock bracelet for security reasons.

It should be noted that the watch presented in this embodiment includes a power supply. Such a power supply is presented here in the form of a battery 57, provided at the level of the processing means 5, which thus allows this watch to be autonomous.

This battery can, according to one embodiment, be a rechargeable battery or not.

Such a battery could also be a LiPO battery allowing fast charging. This battery can be connected to a USB port to recharge it. The recharging could also be done by induction so as to avoid a potential entry of water or dust.

The recharging of such a battery could also be done by solar energy, so as to provide an ecological solution.

In this case, provision could be made for solar recharging to be done via an associated solar connector, so as to be able to perform emergency recharging, for example in the mountains or during hikes. In this way, it would prevent the connected watch from running out of battery.

As described above, the connected watch includes a measurement module 3. In this embodiment, this measurement module 3 includes:

a first sensor 31 capable of measuring the oxygen level at said radial artery of said user;

• a second sensor 32 capable of measuring the heart rate of said user by measuring the vibrations at the level of said radial artery;
• a third sensor 33 capable of measuring the ascending and descending blood flows at the level of said radial artery;
• a fourth sensor 34 of skin temperature of said user.

In this embodiment, and so as to have a permanent follow-up of the user, these measurements are carried out continuously.

Of course, if necessary, one or other of these measures could be carried out periodically so, for example, to save the battery of the connected watch.

According to an embodiment not shown, this measurement module could also comprise a sensor making it possible to detect a fall by the user, for example an altimeter capable of detecting a sudden change in altitude (here, altitude of the wrist).

So as to favor essential sensors monitoring the vital functions, it should be noted that one or more of the sensors can, according to one embodiment, be activated or deactivated by action of the user, for example by tactile action on the display screen 20 or by a combination of buttons.

In this embodiment, the measurement module 3 is connected, by means of a cable, which here is a flat cable, to a processing module 5 whose purpose is to analyze the parameters measured and to deliver information indicating the detection or non-detection of an anomaly based on said analysis.

This processing module 5 here comprises:

• means 50 for acquiring measured data from said first sensor 31, second sensor 32, third sensor 33 and fourth sensor 34;
• first means 51 for analyzing the oxygen level measured by said first sensor 31, comparing said value of the oxygen level with a first predetermined threshold;
• second means 52 for analyzing the number of vibrations measured by said second sensor 32, comparing said heart rate value with a second predetermined threshold;
• third means 53 for analyzing the ascending and descending blood flows measured by said third sensor 33, comparing said value of the ascending blood flow with respect to a third predetermined threshold and of the descending blood flow with respect to a fourth predetermined threshold;
• fourth means 54 for analyzing the skin temperature of said user measured by said fourth sensor 34, comparing said value of the skin temperature with a fifth predetermined threshold;
• means 55 for delivering information indicating the detection or non-detection of an anomaly based on said analysis of said oxygen levels, heart rate and ascending and descending blood flow of said user, and of said skin temperature of said user,

According to one embodiment of the invention, the means 55 for delivering information indicating the detection or non-detection of an anomaly as a function of the analysis of the oxygen levels, heart rate, ascending and descending blood flows , and skin temperature of the user can deliver information indicating the detection of an anomaly if at least one of the parameters measured is characteristic of an anomaly.

For example, in the event of a sudden drop in the oxygen level, visible by measuring the oxygen level then comparing it with a predetermined threshold of expected oxygen level, the delivery means can deliver information indicating the detection of an anomaly.

In addition, if the comparison of the value of the ascending blood flow with respect to a third predetermined threshold and/or of the descending blood flow with respect to a fourth predetermined threshold reveals an anomaly, this may be indicative of a cardiac pathology (arrhythmia, tachycardia, bradycardia, or cardiac malaise), the delivery means can therefore also deliver information indicating the detection of an anomaly.

In addition, in the event of a sudden drop in the user's temperature, visible by measuring his skin temperature then comparing it with a fifth predetermined temperature threshold, the delivery means can deliver information indicating the detection of an abnormality, for example hypothermia.

According to another embodiment, and so as to be able to reduce the possibility of a false alarm, the delivery means can deliver information indicating the detection of an anomaly if at least two of the parameters measured are characteristic of an anomaly, that is to say if at least two of the measured parameters are outside the respective predetermined threshold.

It should be noted that this processing module 5 further comprises means 58 for storing the measured data of the first sensor 31, second sensor 32, third sensor 33 and fourth sensor 34.

The fact of storing the measured data of the first sensor 31, second sensor 32, third sensor 33, and fourth sensor 34 makes it possible to keep a history of the vital information of the user over a more or less long period depending on the embodiments. In this way, a person who consults the history, such as a doctor or a nurse in the event of an emergency intervention, can have a complete view of the medical history of the user of the connected watch.

According to one embodiment, the watch further comprises means for analyzing the data measured and stored over a predefined period, for example to detect any anomalies, such as cardiac arrhythmia, hypertension, or hypothermia.

It should be noted that, according to one embodiment, and for greater efficiency in the event of an emergency intervention, for example, the storage means may also contain at least one piece of information relating to the user belonging to the group comprising:

- the age of the user;

- anatomical data of the user;

- a morphological data of the user;

- the medical history of the user;

- the user's blood group.

In this case, and so that the response to any anomaly is as appropriate as possible, it is preferable that:

- the first predetermined threshold is defined according to said least information relating to said user, and/or

- the second predetermined threshold is defined according to said least information relating to said user, and/or

- the third predetermined threshold is defined according to said least information relating to said user, and/or

- the fourth predetermined threshold is defined according to said least one item of information relating to said user, and/or

the fifth predetermined threshold is defined as a function of said least one item of information relating to said user.

For example, a heart rate threshold will not be identical whether the person is athletic or not, depending on their age or morphology.

Similarly, a medical history can be useful for the medical profession if it has to perform an operative intervention. Such a feature can therefore be useful in the case of rescue operations which may need to access certain patient data in order to be able to intervene quickly.

Thus, according to one embodiment, this or these information relating to the user can be consulted by display on the display screen 20 of the main body 2.

This can for example be accessed by a combination of keys or by pressing this display screen.

According to one embodiment, one or more of the information relating to the user can be automatically displayed in the event of delivery of information indicating the detection of an anomaly.

According to the invention, the connected watch 1 further comprises, as said above, a location module 6. This location module 6 comprises:

• a geolocation sensor 61;
• an avalanche victim detector 62, and
• communication means 63 capable of communicating with a beacon 9.

According to a known technology, the avalanche victim detector 62 is an electronic transmitter-receiver device of a particular radio signal, intended to quickly locate its wearer if the latter is buried under an avalanche of snow, by another DVA manipulated nearby by a rescuer. Such an avalanche victim detector can make it possible to emit this particular low-energy radio signal even when the watch has no battery for a predetermined period of time, for example for 7 days.

The geolocation sensor 61 allows, for example, the user to know his position in connection with a map displayed on the screen 20 of the connected watch. This mapping can also include a display of an estimated route as well as an estimated time remaining before reaching a location objective entered by the user.

Provision could also be made for the cartography to illustrate, in the case of use near a ski area, indications of the color of the piste.

Such a map can, for example, be downloadable through an application, of the mobile application type, which would be paired with such a connected watch.

It could also be provided that the connected watch also incorporates a compass. In this way, it makes it possible to amplify the precision of the indications given as to the position and the direction to follow for a user.

One could also imagine an embodiment in which this location sensor is able to share its location with other nearby connected watch location sensors so that the map displayed on the main screen can display other people nearby. proximity.

One could also imagine an embodiment in which the shared locations of the different watches can be synchronized on an application, such as a mobile application, so as to generate a navigation assistance map (Waze type). Such a mobile application could be used for climbing, skiing, hiking, or any other activity.

In addition, and as described, the location module 6 comprises communication means 63 capable of communicating with a beacon 9.

Indeed, for example if the user is located in an area in which there is no network, and therefore the geolocation sensor 61 cannot be active, the position of the user cannot be obtained through this. Therefore, the connected watch 1 according to the invention is designed to be able to communicate with a beaconing system 90 as illustrated in FIG. 5.

This beaconing system 90 comprises a plurality of beacons 9 geographically spaced apart by at least a distance D, each of the beacons 9 being able to communicate with the connected watch when the latter is close to the beacon 9, so that the beacon 9 nearby can deliver a first piece of information R to the connected watch 1 and receive a second piece of information T transmitted by the connected watch 1.

Therefore, the communication means 63 include means for receiving the first information and means for transmitting the second information.

The distance D can for example be equal to 1 km. As a result, it is possible to know the exact position of the user at 1km. It should be noted that between two beacons, the position of the user can be approximated, for example according to an estimate of the speed of the user, of the path taken.

According to the embodiments, the first information comprises at least one element from the group comprising:

• the time of communication with the beacon 9;
• the date of communication with the beacon 9;
• the location of said beacon 9;
• a number of people having received information by the beacon 9 in a predetermined period of time.

In addition, the second information comprises at least one element from the group comprising:

• the time of communication with the beacon 9;
• the date of communication with the beacon 9;
• an identifier number of the connected watch 1;
• information characteristic of the user.

Thus, by beaconing a given beacon, a user can for example know the number of people passing by this beacon in a given time. For example, we could provide a display of a number of people who have tagged at a given tag in the last hour. Provision could also be made for the first piece of information to contain an approximate distance to a person who has tagged this given beacon in the defined period of time. This can possibly be done by triangulation of the data.

This could allow that, in the event that the user belongs to a group, this data can allow a member of the group to situate himself in relation to others and, for example, to follow them without losing them.

In the case of a group, it could for example be provided that the identification number of the connected watch or that the characteristic information of the user be recognizable by the whole group (for example the beginning of an identical serial number for a whole group of watches) so as to make it easier to use. Such a characteristic can, for example, be useful with a view to renting out such connected watches, for example in leisure bases or in mountain ski resorts.

It could also be provided that the data acquired by the beacon through the reception of the first piece of information can be accessible to the emergency services in the event of an intervention.

It should be noted that, in this embodiment, the connected watch further comprises a sensor 64 capable of measuring atmospheric pressure and an external oxygen level, which is here placed in the location module 6. However, this sensor could also be positioned elsewhere on the connected watch.

As illustrated in FIG. 2, the connected watch according to this embodiment further comprises alert means 7. Therefore, if information indicating the detection of an anomaly is delivered by the delivery means 55, these means alert 7 generate an alert message which is transmitted via transmission means 8 for example to a predetermined contact or to an emergency service.

Provision can be made for the connected watch to be able to transmit at low frequency via the transmission means 8, even when the latter is discharged, so that it can be used in the event of an emergency.

Here, the transmission means 8 comprise a port 81 configured to receive a SIM card, preferably a nano SIM card.

These transmission means can be accompanied by transmission means implemented in the form of an antenna operating by wireless technology such as Bluetooth, Wifi, 3G, 4G, or 5G.

In this way, the alert message can, for example, be issued in the form of an SMS or a voice message sent to a person's telephone.

This alert message can also be sent in the form of a notification on a mobile terminal of a predetermined contact.

This alert message can also be accompanied by an alert sent to the emergency services so as to gain in efficiency for the intervention.

According to one embodiment, the alert message can contain important information on the alert generated, for example the measurement which generated this alert, information relating to the user, the location of the user.

According to one embodiment, the alert message can also be accompanied by a pre-diagnosis so as to refer a person more easily to the right emergency service, or to refer the emergency services directly.

According to one embodiment, the message sent may also contain a remote access code allowing the emergency services or the predetermined contact to obtain numerous information contained in the connected watch such as beacon information for example.

In the embodiment presented, the predetermined contact or contacts are stored in the storage means.

According to one embodiment of the invention, this predetermined contact can also be automatically displayed on the display screen 20 in the event of delivery of information indicating the detection of an anomaly.

It is possible to provide an embodiment of the invention in which the measured data is accessible by the user who, for example by action on the display screen or by combination of buttons, sends data to the emergency services or to the predetermined contact through the transmission means 8 so as to be able to carry out a remote diagnosis or direct the user's request.

It is also possible to provide an embodiment in which the transmission means are accompanied by reception means (not represented here) so that a third party, for example an emergency service, can enter data in a format recognized by the show.

It can also be provided that the connected watch includes means for issuing a notification on the digital screen so as to indicate to the user a recommended or not recommended route, an update of climatic information, etc.

Advantageously, the connected watch according to the embodiment presented further comprises unique identification means.

In this way, it makes it possible to secure the connected watch by limiting access to the data and its use to one or more authorized persons. For example, in the case of renting such a connected watch, this prevents their theft.

In addition, the connected watch can include means for detecting the placing of this watch on the wrist of the user.

In this way, this avoids false alerts in the event of a suspicious measurement when the watch is not placed on the user's wrist.

According to one embodiment, the transmission means may further comprise emergency call means 82 of the predetermined contact.

These emergency call means can be implemented in the form of two buttons placed on either side of the main body, the user having to press the two buttons simultaneously to make this emergency call.

Such emergency call means can also be implemented in the form of a single button, for example a button placed in an inaccessible place of the connected watch so that it cannot be used in a way fortuitous.

We now present, in relation to FIGS. 3 and 4, a method for monitoring a user, this method being capable of delivering information indicating the detection or non-detection of an anomaly. According to the invention, this monitoring method implements a connected watch capable of coming into contact with the wrist of a user according to one of the aforementioned embodiments. As illustrated, the method comprises the following steps, implemented by the connected watch, when the measurement module 3 is positioned opposite a radial artery of the user's wrist:

• measurement 10 of the user's oxygen level, using the first sensor 31;
• measurement 11 of the heart rate of the user by measuring the vibrations at the level of the radial artery, using the second sensor 32;
• measurement 12 of the ascending and descending blood flows at the level of the radial artery, using the third sensor 33;
• measurement 13 of the skin temperature of the user, which is done using the fourth sensor 34;
• analysis 14 of the oxygen levels, heart rate and ascending and descending blood flow, and skin temperature of the user, so as to transmit instructions for issuing information indicating the detection or non-detection of an anomaly;
• delivery 15 of information indicating the detection or non-detection of an anomaly.

According to the invention, the analysis step 14 comprises the following successive steps:

• comparison 141 of the measured oxygen level with a first predetermined threshold;
• comparison 142 of the measured heart rate with a second predetermined threshold;
• comparison 143 of the value of the ascending blood flow with respect to a third predetermined threshold and of the value of the descending blood flow with respect to a fourth predetermined threshold, and
• comparison 144 of value of the skin temperature with respect to a fifth predetermined threshold, and
• instruction 145 to issue said information indicating the detection of an anomaly if the oxygen level, and/or the heart rate and/or the ascending and/or descending blood flows of said user respectively exceed the first, second, third, fourth thresholds and/or fifth predetermined thresholds.

According to one embodiment of the invention, the instruction step 15 for issuing information indicating the detection or non-detection of an anomaly as a function of the analysis of the oxygen levels, and/or rhythm cardiac and/or ascending and/or descending blood flow and/or skin temperature of the user can deliver information indicating the detection of an anomaly if at least one of the measured parameters is characteristic of an anomaly.

According to another embodiment, and so as to be able to reduce the possibility of a false alarm, the delivery step capable of delivering information indicating the detection of an anomaly can be carried out if at least two of the measured parameters are characteristic of an anomaly, that is to say if at least two of the parameters measured are outside the respective predetermined threshold.

In the embodiment of the method illustrated in FIG. 3, if information indicating the detection of an anomaly is delivered by the delivery means 55, the method comprises the following successive steps:

- generation 16 of an alert message by the alert means 7;

- sending 17 of the alert message generated to the predetermined contact, or to the emergency services, by means of the transmission means.

In addition, in the illustrated embodiment, the method comprises a prior step 100 of authentication. In this way, it makes it possible to secure the connected watch by limiting access to the data and its use to one or more authorized persons.

The invention also relates to a computer program product downloadable from a communication network and/or stored on a medium readable by microprocessor and/or executable by a microprocessor, comprising program code instructions for the execution of a method user monitoring according to one of the aforementioned embodiments, when it is executed on a computer.

The invention also relates to a computer-readable and non-transitory storage medium, storing a computer program comprising a set of instructions executable by a computer or a processor for implementing the method of monitoring the user according to the one of the aforementioned embodiments.

More particularly, the storage medium can be included in the main body, for example in the memory 58 integrated at the location of the processing module. It could also be included at the location of the measurement module.

Provision could also be made for such a watch to include, in this memory, a maintenance schedule, so that the functions offered remain optimal and that monitoring is reliable for a given user.

Claims (12)

Connected watch (1), capable of coming into contact with a wrist of a user, comprising a main body (2) provided with a display screen (20), a bracelet (4) connected to the main body (2 ), a measurement module (3) intended to be positioned opposite a radial artery of the user's wrist, when the watch is worn by the user, a processing module (5), and a location module (6),
said measurement module (3) comprising:

• a first sensor (31) capable of measuring the oxygen level at said radial artery of said user;
• a second sensor (32) capable of measuring the heart rate of said user by measuring the vibrations at the level of said radial artery;
• a third sensor (33) able to measure the ascending and descending blood flows at the level of said radial artery;
• a fourth sensor (34) of skin temperature of said user,

said processing module (5) comprising:

• means (50) for acquiring measured data from said first sensor (31), second sensor (32), third sensor (33) and fourth sensor (34);
• first means (51) for analyzing the oxygen level measured by said first sensor (31), comparing said value of the oxygen level with a first predetermined threshold;
• second means (52) for analyzing the number of vibrations measured by said second sensor (32), comparing said heart rate value with a second predetermined threshold;
• third means (53) for analyzing the ascending and descending blood flows measured by said third sensor (33), comparing said value of the ascending blood flow with respect to a third predetermined threshold and of the descending blood flow with respect to a fourth predetermined threshold ;
• fourth means (54) for analyzing the skin temperature of said user measured by said fourth sensor (34), comparing said value of the skin temperature with a fifth predetermined threshold;
• means for delivering (55) information indicating the detection or non-detection of an anomaly as a function of said analysis of said oxygen levels, heart rate and ascending and descending blood flow of said user, and of said skin temperature of said user,

said location module (6) comprising:

• a geolocation sensor (61);
• an avalanche victim detector (62), and
• communication means (63) able to communicate with a beacon (9).

Connected watch (1) according to claim 1, characterized in that said communication means (63) comprise means for receiving first information delivered by said beacon (9), when said beacon (9) is close to said watch (1), and means for transmitting second information to said beacon (9) when said beacon (9) is close to said watch (1). Connected watch (1) according to claim 2, characterized in that said first information comprises at least one element from the group comprising:

• the time of communication with said beacon (9);
• the date of communication with said beacon (9);
• the location of said beacon (9);
• a number of people having received information by said beacon (9) within a predetermined period of time.

Connected watch (1) according to one of Claims 2 or 3, characterized in that the said second piece of information comprises at least one element from the group comprising:

• the time of communication with said beacon (9);
• the date of communication with said beacon (9);
• an identifier number of said connected watch (1);
• information characteristic of said user.

Connected watch (1) according to one of the preceding claims, characterized in that it further comprises a sensor (64) capable of measuring atmospheric pressure and an external oxygen level. Connected watch (1) according to one of Claims 1 to 5, characterized in that it also comprises alert means (7), and in that, if information indicating the detection of an anomaly is delivered by said delivery means (55), said alert means (7) generates an alert message which is transmitted via transmission means (8) to at least one predetermined contact. Beaconing system (90) comprising a plurality of beacons (9) geographically spaced apart by at least one distance (D), characterized in that each of the said beacons (9) is able to communicate with a connected watch according to one of the claims 1 to 6, when said connected watch (1) is close to said beacon (9), so that said beacon can deliver first information to said connected watch (1) and receive second information delivered by said connected watch ( 1). Method for monitoring a user, said method being capable of delivering information indicating the detection or non-detection of an anomaly, characterized in that it implements a connected watch (1) capable of coming into contact with a wrist of a user according to one of claims 1 to 6, and in that said method comprises the following steps, implemented by said connected watch (1), when said measurement module (3) is positioned opposite -towards a radial artery of said wrist of said user:

• measurement (10) of the oxygen level of said user, using said first sensor (31);
• measuring (11) the heart rate of said user by measuring vibrations at said radial artery, using said second sensor (32);
• measuring (12) ascending and descending blood flow at said radial artery, using said third sensor (33);
• measurement (13) of said skin temperature of said user, using said fourth sensor (34);
• analyzing (14) said oxygen levels, heart rate and ascending and descending blood flow, and skin temperature of said user, so as to transmit instructions for issuing information indicating the detection or non-detection of an anomaly;
• delivery (15) of said information indicating the detection or non-detection of an anomaly;

said analysis step (14) comprising the following successive steps:

• comparison (141) of the measured oxygen level with a first predetermined threshold;
• comparing (142) the measured heart rate with a second predetermined threshold;
• comparison (143) of the value of the ascending blood flow with respect to a third predetermined threshold and of the value of the descending blood flow with respect to a fourth predetermined threshold, and
• comparison (144) of value of the skin temperature with respect to a fifth predetermined threshold, and
• instruction for delivery (145) of said information indicating the detection of an anomaly if the oxygen level, and/or the heart rate and/or the ascending and/or descending blood flows and/or the skin temperature of said user respectively exceed the first, second, third, fourth thresholds and/or fifth predetermined thresholds.

Method according to claim 8, characterized in that, if information indicating the detection of an anomaly is delivered by said delivery means (55), the method comprises the following successive steps:
- generation (16) of an alert message by said alert means (7), and
- sending (17) said alert message generated to said at least one predetermined contact, through said transmission means (8). Method according to one of Claims 8 or 9, characterized in that it implements a beaconing system (90) according to Claim 9, and in that, when the said connected watch (1) is close to a beacon (9), the method comprises a step of receiving first information delivered by said beacon (9) and a step of transmitting second information to said beacon (9). Computer program product downloadable from a communication network and/or stored on a medium readable by microprocessor and/or executable by a microprocessor, characterized in that it comprises program code instructions for the execution of a for monitoring a user according to one of Claims 8 to 10, when it is executed on a computer or a mobile terminal. Storage medium readable by a terminal and non-transitory, storing a computer program comprising a set of instructions executable by a computer or a processor to implement the method according to one of Claims 8 to 10.